Table 1.

Release of SP or CGRP-like immunoreactivity (LI) (fmol/gr/20 min) from slices of rat dorsal spinal cord or esophagus

Peptide immunoreactivity	Control	Agonist	Ca2+-free	Capsaicin des
Spinal cord (cinnamaldehyde, 10 μM)
SP-LI	8.3 ± 1.7	160.5 ± 16.7*	34.5 ± 9.7†	23.7 ± 7.2†
CGRP-LI	38.5 ± 7.4	720.4 ± 43.7*	118.5 ± 25.8†	63.8 ± 10.8†
Esophagus (cinnamaldehyde, 50 μM)
SP-LI	2.4 ± 0.9	31.5 ± 8.2*	6.3 ± 2.1†	5.8 ± 1.9†
CGRP-LI	4.8 ± 1.3	93.2 ± 21.4*	19.2 ± 4.6†	17.8 ± 5.1†

*, P < 0.05 versus control (vehicle);

†, P < 0.05 versus cinnamaldehyde, alone.

Each entry represents the mean ± SEM of at least four experiments.